Phycology Section, Patrick Center for Environmental Research, Academy of Natural Sciences of Drexel University. Merismopedia punctata (NADED 875002). https://diatom.ansp.org/taxaservice/ShowTaxon1.ashx?naded_id=875002. Accessed 19 Nov 2018. This web service reports all information about a given algae taxon available at the time of retrieval.